org.diorite.impl.inventory.recipe.craft.ArrayCraftingRecipePattern.java Source code

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Here is the source code for org.diorite.impl.inventory.recipe.craft.ArrayCraftingRecipePattern.java

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/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2016. Diorite (by Bartomiej Mazur (aka GotoFinal))
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package org.diorite.impl.inventory.recipe.craft;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

import org.apache.commons.lang3.Validate;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.apache.commons.lang3.builder.ToStringStyle;

import org.diorite.inventory.recipe.craft.CraftingRecipeItem;
import org.diorite.inventory.recipe.craft.CraftingRecipePattern;

/**
 * {@link CraftingRecipePattern} that use array of {@link CraftingRecipeItem} as implementation.
 */
public class ArrayCraftingRecipePattern implements CraftingRecipePattern {
    protected final CraftingRecipeItem[][] items;

    public ArrayCraftingRecipePattern(final CraftingRecipeItem[][] items) {
        Validate.notNull(items, "Recipe pattern can't be null.");
        Validate.notEmpty(items, "Recipe pattern can't be empty.");
        Validate.noNullElements(items, "Recipe pattern elements can't be null.");
        this.items = items;
    }

    @Override
    public int getColumns() {
        return this.items[0].length;
    }

    @Override
    public int getRows() {
        return this.items.length;
    }

    @Override
    public CraftingRecipeItem getRecipeItem(final int row, final int column) {
        if ((row >= this.getRows()) || (column >= this.getColumns())) {
            return null;
        }
        return this.items[row][column];
    }

    private transient List<CraftingRecipeItem> itemsList;

    @Override
    public synchronized Collection<CraftingRecipeItem> getRecipeItems() {
        if (this.itemsList == null) {
            this.itemsList = new ArrayList<>(this.getColumns() * this.getRows());
            for (final CraftingRecipeItem[] items : this.items) {
                for (final CraftingRecipeItem item : items) {
                    if (item != null) {
                        this.itemsList.add(item);
                    }
                }
            }
            this.itemsList = Collections.unmodifiableList(new ArrayList<>(this.itemsList));
        }
        return this.itemsList;
    }

    @Override
    public String toString() {
        return new ToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).appendSuper(super.toString())
                .append("items", this.items).toString();
    }
}